公开(公告)号：US3689120A

公开(公告)日：1972-09-05

申请号：US3689120D

申请日：1970-07-28

申请人： MASAHARU SUMIYOSHI ,  AKIRA SUZUKI ,  MINORU KAWABATA ,  SHIZUKI SAKURAI

发明人： SUMIYOSHI MASAHARU ,  SUZUKI AKIRA ,  KAWABATA MINORU ,  SAKURAI SHIZUKI

IPC分类号： G01L5/28 ,  B60T8/1761 ,  B60T8/52 ,  B60T8/58 ,  B60T8/12

CPC分类号： B60T8/52 ,  B60T8/58

摘要： An anti-skid braking system which serves to modulate the pressure in the wheel brake cylinders of a vehicle to prevent the vehicle wheels from being locked when the normal proportional relationship between brake torque and wheel deceleration is no longer present. In order to modulate the pressure in the wheel brake cylinders, a pressure modulating valve is provided between the master cylinder and each wheel brake cylinder, the pressure modulating valve being responsive to a signal derived from a comparator circuit. The comparator circuit compares a signal responsive to brake torque and derived from a brake torque sensor, with a signal responsive to wheel deceleration and derived from a wheel deceleration operational circuit, to derive the first-named signal. The wheel deceleration operational circuit is adapted to convert a signal responsive to wheel speed and derived from a wheel speed sensor into said wheel deceleration-responsive signal. Preferably, both the comparator circuit and the wheel deceleration operational circuit are composed of fluid amplifier devices.

摘要翻译： 一种防滑制动系统，用于当不再存在制动转矩和车轮减速度之间的正常比例关系时，用于调节车辆的车轮制动缸中的压力，以防止车轮被锁定。 为了调节车轮制动缸中的压力，在主缸和每个车轮制动缸之间设置压力调节阀，压力调节阀响应于从比较器电路得到的信号。 比较器电路将响应于制动转矩的信号和来自制动转矩传感器的信号与响应于车轮减速并从车轮减速运算电路导出的信号进行比较，以得到第一命名信号。 车轮减速运算电路适于将响应于车轮速度的信号转换并从车轮速度传感器导出到所述车轮减速响应信号中。 优选地，比较器电路和车轮减速运算电路都由流体放大器装置构成。

公开(公告)号：US5291534A

公开(公告)日：1994-03-01

申请号：US903096

申请日：1992-06-19

申请人： Shizuki Sakurai ,  Tomio Nagata ,  Shiro Kuwahara ,  Osamu Tabata ,  Susumu Sugiyama

发明人： Shizuki Sakurai ,  Tomio Nagata ,  Shiro Kuwahara ,  Osamu Tabata ,  Susumu Sugiyama

IPC分类号： G01D3/036 ,  G01D5/241 ,  G01L9/00 ,  G01L9/12 ,  G01P15/125 ,  G01R27/26 ,  G01L19/04

CPC分类号： G01L9/0073 ,  G01D3/0365 ,  G01D5/2417 ,  G01L9/125 ,  G01P15/125 ,  G01R27/2605

摘要： A digital capacitive sensing device comprises: a reference capacitor having a reference capacitance unaffected by a force to be measured; a reference pulse signal generating circuit which generates a reference pulse signal of a frequency corresponding to the reference capacitance; a sensing capacitor having capacitance variable according to the magnitude of the force; a measuring pulse signal generating circuit having a construction similar to that of the reference pulse signal generating circuit and capable of generating a measuring pulse signal of a frequency corresponding to the capacitance of the sensing capacitor; and a differential arithmetic circuit which adds the number of pulses of the reference pulse signal in a predetermined time interval to a set value and subtracts the number of pulses of the measuring pulse signal in a predetermined time interval from the set value. The reference pulse signal generating circuit is capable of compensating a zero point temperature characteristic of a detection value, and the measuring pulse signal generating circuit is capable of compensating a detection sensitivity temperature characteristic.

摘要翻译： 数字电容感测装置包括：具有参考电容的参考电容，其不受被测量的力的影响; 参考脉冲信号发生电路，其生成与参考电容对应的频率的参考脉冲信号; 感测电容器，其具有根据所述力的大小而变化的电容; 测量脉冲信号发生电路，具有类似于参考脉冲信号发生电路的结构，并且能够产生与感测电容器的电容对应的频率的测量脉冲信号; 以及差分运算电路，将预定时间间隔内的基准脉冲信号的脉冲数与设定值相加，并从设定值减去预定时间间隔内的测量脉冲信号的脉冲数。 参考脉冲信号发生电路能够补偿检测值的零点温度特性，并且测量脉冲信号发生电路能够补偿检测灵敏度温度特性。

公开(公告)号：US5388460A

公开(公告)日：1995-02-14

申请号：US853292

申请日：1992-03-18

申请人： Shizuki Sakurai ,  Shiro Kuwahara ,  Nakane Kunie ,  Ryota Takagi

发明人： Shizuki Sakurai ,  Shiro Kuwahara ,  Nakane Kunie ,  Ryota Takagi

IPC分类号： B81B3/00 ,  G01P15/08 ,  G01P15/125 ,  H01L29/84 ,  G01P15/11

CPC分类号： B81B3/0008 ,  G01P15/0802 ,  G01P15/125

摘要： A capacitive acceleration sensor is composed of a silicon plate, a glass plate and a substrate. The silicon plate has a fixed portion and a movable portion supported by the fixed portion through spring beams. The movable portion is moved in response to the change in the acceleration and is provided with a moving electrode thereon. The glass plate is provided with a fixed electrode and anodically bonded to the silicon plate so that the fixed electrode faces the moving electrode with a predetermined gap. On the glass plate, a first dummy electrode is formed at a location corresponding to the spring beams of the silicon plate. The dummy electrode has a terminal portion at one end so as to be electrically connected with the silicon plate during anodic bonding of the plates. On the substrate, a second dummy electrode is formed at a location corresponding to the movable portion of the silicon plate. The dummy electrode, similarly, has a terminal portion at one end so as to be electrically connected with the silicon plate during anodic bonding of the silicon plate and the substrate.

摘要翻译： 电容加速度传感器由硅板，玻璃板和基板构成。 硅板具有固定部分和通过弹簧梁由固定部分支撑的可移动部分。 可移动部分响应于加速度的变化而移动，并且在其上设置有移动电极。 玻璃板设置有固定电极并阳极结合到硅板，使得固定电极以预定间隙面对移动电极。 在玻璃板上，在对应于硅板的弹簧梁的位置处形成第一虚拟电极。 虚拟电极的一端具有端子部分，以便在板的阳极接合期间与硅板电连接。 在基板上，在与硅板的可动部对应的位置形成第二虚拟电极。 虚拟电极类似地在一端具有端子部分，以在硅板和衬底的阳极接合期间与硅板电连接。